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投影式视力表是一种将各种视力表制成幻灯片,并采用遥控器进行控制,将验光时所需用的各种视力图表连续放映到专用屏幕上的装置。使用该投影式视力表可进行视力检查、确定球镜焦度、散光轴向和焦度、双色试验、集合力、散开力和调节力的测定,以及隐斜和立体视等检查。从而实现了从过去的单眼屈光检查向双眼屈光检查及双眼视功能的检查的过渡。
Projection vision chart is a kind of eye chart will be made into a slide, and the use of remote control to control the optometry will be required for a variety of vision chart continuous projection screen to a dedicated device. Use this projection eye chart for visual acuity, determine the spherical power, axial and focus astigmatism, two-color test, set force, determination of disability and accommodation, as well as hidden oblique and stereoscopic examination. In order to achieve from the previous monocular refractive examination to the binocular refractive examination and binocular vision examination of the transition.